Lathe



W. E. WHIPF.

July 19, 1927.

LATHE Filed Jan. 21, 1.925

5 Sheets-Sheet 1 r INVENTOR M W HIS ATTORNEY July 19', 1927.

W. E. WHIPP LATHE Filed Jan. 21, 1,925

3 Sheets-Sheet 2 FIG.Z

INVEINTOR/ I MM BY W M HIS ATTORNEY W. E. WHIPP July 19, 1927.

LATHE Filed Jan. 21, 2 s Sheets-Sheet 5 QN w m UE.

INVENTOR Wa HIS ATTORNEY Patented July'19, 1927. p i Y r UNI-TED STATES P NT- OFFICE.

WENDELL n. WHIPP, OFSIDNEY, .oriro, ASSIGNORTO 'rnnivroivanon MACHINE TOOL COMPANY, or SIDNEY, OHIO, ACORPQRATION; or 012x10.

time.

Application filed January 21, 1926. Serial No. 82,675.

This invention relates to new and useful versely over ways 9. 9 in'the carriage 6 by improvements in lathes, and more. partioua cross'feed screw 10 is a cross slide 11 carlarly to improvements in engine lathes by lying a slidable toolrest 12. In order that which they may be used for both turning this tool rest may be moved transversely of '5 and facing operations at the same time. the lathe bed to engage its tools 13 with the 0 It is one of the principal objects of my work toface the latter, there is mounted invention to mount on the rear carriage on the cross feed screw a movable mem- Wings of a lathe, one or more tool rests ber such as a nut 14 which is secured to the which are free to be moved in either direcjcross slide 11 by a screw 15. Accordingly,

10 'tion at right angles to the cross feed screw when the cross feed screw 10 is turned by 65 for turning operations upon work which the'conven'tional apron-operated mechanism at thesame time isbeing facedby toolscar-- (not shown), or by other suitable means, the ri'ed' by the front tool rest. a nut 14: will be movedby the threads on the It; is another object of my invention to screw to bringthe tools 13 carried by the tool 15 provide means suchas bevel or worm gears rest 12 into engagement with the work to perto transmit power from the cross feed screw form the desired facing operations thereon. toone' or moreauxiliary feed screws mount- For the purpose of performing turning ed in the back carriage wings, for the puroperations uponthe work oat the time it is pose of moving'one or more tool rests on being faced by the tools 13, the following,

the latter in'either direction atright angles means are provided. Freeto be moved in 75 to the line of movement of the front tool cit-her direction along a dove-tail guide 16 rest; j oneach back carriage wing 7', is a slide 17 Still another object of my invention is to carrying a back tool rest 18. While I have provide nut orother suitable'means forconshown one rear toolfr'est 18 on each back necting' the tool rests to their respective carriage. wing agreater number may be proscrews for the purpose of effecting their vided for' a movement in either direction longitudinal movement! along the screws thereon if desired. 1

when the latter areturned. To effect a movement of the rear tool rests Other important and incidental objects 18, 18- in either direction, I have provided do will be brought out inthe following speciauxiliary feed screws 19. '19, each one of fication and particularly set forth in the which is ournaled in suitable bearings in a subjoined claims. back carr age wmg'7. The slides 17, 17 carn the accompanying drawings illustratrying the rear tool rests 1 8, 18 respectively ing my invention, Figure 1 is a plan view are connected nuts 20 or other suitable 35 of my improved engine lathe with two rear members tothe auXiliaryfeed screws 19, 19

tool rests in the back carriage Wings and for movement along the latter when they carrying toolslfor turning diameters. Figare turned by the cross feed screw 10 through ure 2 is a longitudinal, sectional view taken means now to be described. through the lathe showing the cross feed and Fast" on the inner. end of the cross feed 7 auxiliary feed screws'and their geared con screw 10 is a bevel gear .21 which meshes 95 nections. And Figure Ski-s a vertical, secwith bevel gears 22, 22 loosely mounted on tional view taken through the lathe on the the reducedinner endsofthe auxiliary feed line'3 3 ofFigure 2. screws 19, 19. .Each bevel gear 22 is free Referring" to the accompanying drawings to turn onthe reduced end of its respective for a detailed descriptionof my invention, auxiliary feed screw 19 between collars 23 100 the numeral 1 designates a lathe bed having and 2 1 thereon. (See Figure 2.) a headstock 2 and a tail stock 3. Rotatably Formed on'the rear portion of each bevel supported between the latter and a chuck gear 22 are teeth 25 which are adapted to be 4 is a piece of work 5 upon which turning engaged by the teeth on a clutchmember26 and facing operations are to be performed inovably secured onits respective auxiliary by means -hereinafter to be described. feed screw 19 by a lVoodrutf key 27 The The numeral 6 designates the lathe carperiphery of each clutch member 26 is riage which is formed with rear wings 7, 7 grooved to receive a clutch yoke 28' that is and is longitudinally movable over ways 8, pivotally secured to a lever 29 secured to its 8 in the lathe bed 1. Free to be moved transrespective back carriage wing 7. By means 0 of'this lever the clutch member 26, which is free to turn in the yoke 28, may be moved into engagement with its respective bevel gear 22 to effect a rotation of the auxiliary feed screw 19 upon which both are mounted. By means of the jaw clutch justdescribed, the rear tool rests 18 may be disconnected from the cross feed screw to permit them to be properly positioned by hand.

One auxiliary feed screw 19 is formed with a right hand thread, and the other auxiliary screw is formed with a left hand thread, so that when the cross feed screw 10 is rotated to move the tool rest 12 toward the work 5, the rear tool rests 18, 18 will be moved toward it by the nuts 20 on the auxiliary feed screws to bring their tools into engagement with the work for the execution of turning operations thereon simultaneously with the facing operations performed upon it by the tools 13. By reversing the direction of rotation of the cross feed screw 10 to withdraw the tools 13 from the work, the auxiliary feed screws 19, 19 will be turned in a reverse direction by the engagement of their bevel gears 22, 22 with the bevel gear 21 on the cross feed screw to retire the turning tools 30 from the work.

IVhile I have shown a bevel gear connection between the cross feed screw 10 and the auxiliary feed screws 19, 19, any other suitable means may be employed to effect the rotation of the latter by the cross feed to move the rear tool rests 18, 18 in either direction along the back carriage wings 7, 7 at the same time the tool rest 12 is moved at right angles to them. It is thus seen that I have provided a simple and economic attachment for lathes of the ordinary type whereby tools may be automatically moved toward the work from different directions by the cross feed screw to perform facing and turning operations simultaneously upon it.

Having described my invention, I claim:

1., In a lathe, a carriage, rear wings on said carriage, a cross feed screw on the latter, a front tool rest on said carriage for movement in either direction by the cross feed screw, an auxiliary feed screw having a right thread on one rear wing of the carriage, and an auxiliary feed screw having a left thread on the other wing of said carriage, a rear tool rest connected to each auxiliary feed screw for movement thereby along its rear carriage wing, and a power transmitting connection between the cross feed screw and the auxiliary feed screws to turn the latter move the rear tool rests toward the work when the cross feed screw is turned to move the front tool rest toward said work.

2. In a lathe, a carriage, rear wings on said carriage, a cross feed screw on said carriage, auxiliary feed screws on said wings, tool rests adapted to be moved in either direction on said wings by the auxiliary feed screws, a power transmitting member fast on said cross feed screw, power transmitting members loosely mounted on the auxiliary feed screws in engagement with the first power transmitting member, and a clutch connection between each auxiliary feed screw and its respective power transmitting member, whereby the latter may turn said auxiliary feed screw to move its respective tool rest along the carriage wing when the cross feed screw is rotated.

8. In a lathe, a carriage, rear wings on said carriage, a cross feed screw on the latter, a front tool rest on said carriage for movement in either direction by the cross feed screw, an auxiliary feed screw having a right thread on one rear wing of the carriage, and an auxiliary feed screw having a left thread on the other wing of the carriage, a rear tool rest connected to each auxiliary feed screw for movement thereby along its rear car 'iage wing, and a gear connection between the cross feed screw and the auxiliary feed screws, whereby when the cross feed screw is turned to move the front tool rest toward the work, the rear tool rests will be moved toward the latter by the aux iliary feed screws, for the purpose specified.

1. In a lathe, a carriage, rear wings on said carriage, a cross feed screw on said carriage, auxiliary feed screws on said wings, tool rests adapted to be moved in either direction on said wings by the auxiliary feed screws a bevel gear fast on said cross feed screw, bevel gears loosely mounted on the auxiliary feed screws in mesh with the first bevel gear, and a clutch connection between each auxiliary feed screw and its respective bevel gear, whereby the latter may turn said auxiliary feed screw to move its respective tool rest along thecarriage wing when the cross feed screw is rotated.

In witness whereof I have hereunto set my hand this 18 day of January, 1926.

WENDELL E. VVI-IIPP. 

